The Grass Doctor

Which of the following is an organic and which is synthetic fertilizer?

Urea Anhydrous Ammonia Super phosphate Diammonium Phosphate

Public Comments

1. All are synthetic fertilizers.
2. Non of this fertilizers are organic. Remember organic fertilizer are byproduct of organic material from living organism or must contain carbon,hydrogen, oxygen and sometime sulphur. Therefore all are synthetic
3. None of them are organic. Look at it - they contain ammonia and phosphorous - not carbon. Anything organic is carbon-related. Also, in organic farmers don't create chemical solutions which they pour on their crops. They do it the good, natural way, using the waste from their animals.
4. All are commonly produced as synthetic fertilizer. However, urea is one of the components of urine from most animals, and thus maybe "organic" from a holistic viewpoint. As urea contains carbon, it is definitely organic from a chemical viewpoint. Anhydrous ammonia would be considered synthetic, but ammonium is a natural product of the transformation of urea when urea is in contact with urease (a natural compound found on all living vegetation material). Consequently, ammonia would also be an holistically "organic" compound as it is part of the natural system. However, it is the starting product from which all synthetically produced nitrogen fertilizer, which makes anhydrous ammonia not "organic" from those which espouse the holistic view. If you understand chemistry and plant nutrition, you will not understand the organic reasoning as it lacks understanding and logic.-